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Finding the Fourth Proportional to 223,799.32, 308,773.50 and 126,987.16

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Solution

The fourth proportional to 223,799.32, 308,773.50 and 126,987.16 is: 175,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,799.32 : 308,773.50 = 126,987.16 : x
  2. Step 2: Convert to fraction form
    223,799.32/308,773.50 = 126,987.16/x
  3. Step 3: Cross multiply
    223,799.32x = 308,773.50 × 126,987.16
  4. Step 4: Simplify right side
    223,799.32x = 39,210,269,848.26
  5. Step 5: Solve for x
    x = 39,210,269,848.26/223,799.32
  6. Step 6: Final answer
    x = 175,202.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.